Bump nokogiri from 1.8.1 to 1.12.5

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.8.1 to 1.12.5.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.8.1...v1.12.5)

---
updated-dependencies:
- dependency-name: nokogiri
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile

@@ -36,7 +36,7 @@ gem 'mongoid_magic_counter_cache'
 # function 'handle_threads_query'.
 gem 'will_paginate_mongoid', "~>2.0"
 gem 'rdiscount'
-gem 'nokogiri', "~>1.8.1"
+gem 'nokogiri', "~>1.12.5"
 
 gem 'elasticsearch', '~> 7.8.0'
 gem 'elasticsearch-model', '~> 7.1.0'

Gemfile.lock

@@ -100,7 +100,7 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.6.1)
     minitest (5.14.0)
     mongo (2.5.3)
       bson (>= 4.3.0, < 5.0.0)
@@ -122,8 +122,9 @@ GEM
     nenv (0.3.0)
     netrc (0.11.0)
     newrelic_rpm (5.6.0.349)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -137,6 +138,7 @@ GEM
     pry-nav (0.2.4)
       pry (>= 0.9.10, < 0.11.0)
     public_suffix (2.0.5)
+    racc (1.5.2)
     rack (1.6.8)
     rack-protection (1.5.3)
       rack
@@ -234,7 +236,7 @@ DEPENDENCIES
   mongoid_cleaner (~> 1.2.0)
   mongoid_magic_counter_cache
   newrelic_rpm
-  nokogiri (~> 1.8.1)
+  nokogiri (~> 1.12.5)
   protected_attributes_continued
   pry
   pry-nav